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(chatquestion)...S.C.O. 343-345, PHYSICS ASSIGNMENT Section-I A mass M is broken in two parts m and (M-m). What should be the ratio between m andM so that the force of gravitation between them is maximum? (1) 2:1 (3) 2:3 Two objectA and B are separated by a distance r. The magnitude of force of gravity on A due to B is FAR and that on B due to A is F 1. (2) 1:2 (4) 3:2 2. M. If the

asked Mar 2, 2020 by balaji.thirumalai

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(chatquestion)...44 A focal radius is the line segment from a point on a hyperbola to one of the foci. The foci of a hyperbola are at (4, 0) and (-4, 0). The difference in the lengths of the focal radii from any point is always +6. Find the equation of the hyperbola. 45 A hyperbola has its foci at (c, 0) and (-c, 0). The point P(2, 4) is on the hyperbola and the focal radii (see Problem 44) from P are perpendicular. Find the equation of the hyperbola....(Anyone? This no. 44 and 45)

asked Mar 2, 2020 by balaji.thirumalai

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(chatquestion)...46, A ball is thrown vertically upwards with a velocity of 10 ms. It returns to the ground with a velocity of 9 ms, If g = 9.8 ms, then the maximum height attained by the ball is nearly (assume air resistance to be uniform) -2 %3D (a) 5.1 m (b) 4.1 m (c) 4.61 m (d) 5 m

asked Mar 2, 2020 by balaji.thirumalai

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(chatquestion)...100 genelfy than +3 Na", mg, u, s, or, RD Paga No.: +2 Dala Be, B order o radius

asked Mar 2, 2020 by balaji.thirumalai

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(chatquestion)...b. 56. If t1, 12, 13 be the length of tangents from the centres of escribed circles i to the circumcircle, prove that 1 2s %3D 122 13? abc...(Q 56)

asked Mar 2, 2020 by balaji.thirumalai

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(chatquestion)...(2) (4) A simple pendulum of length L and bob of mass m is released from a horizontal state. The speed of bob when its string makes an angle 60° with (3) 7 cm 10 cm 8 cm 39. 34. vertical is given by The dia seen fr off, th 60 to a poic VgL V39L (1) (2) 3gL gL (4) (3) 40. If a body looses half of its velocity on penetrating ill it

asked Mar 2, 2020 by balaji.thirumalai

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(chatquestion)...15 In the given diagram, input voltage is V, and output across R, is Vo. Frequency of output voltage (V will be RL V, = 10 sin(100 Tt) %3D 2 (1) 50 Hz tance (2) 100 Hz ain (3) 150 Hz (4) 25 Hz www...(Help)

asked Mar 2, 2020 by balaji.thirumalai

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(chatquestion)...CI 66. The dipole moment of chlorobenzene is CI Cl 1.5 D. The dipole moment of Cl (b) 2.25D is Cl (a) 2.86D (c) 1.5D (d) OD...(Solution plss)

asked Mar 2, 2020 by balaji.thirumalai

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(chatquestion)...What is the ratio of the angular speeds of the minute hand and second hand of a clock? (1) 1:12 (3) 1:60 (2) 12:1 (4) 60: 1 4. For a particle in circular motion, if the displace- 1 ment in -th of the time period is 0.3 m, the ra- 4 dius of circle is nearly (1) 0.22 m (3) 1.2 m A particle is moving along a circular path with a uniform speed Through what angle does its angu- (2) 0.15 m (4) 0.3 m

asked Mar 2, 2020 by balaji.thirumalai

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(chatquestion)...If angular momentum of an electron revolving in an orbit 2h of H-atom is , then speed of electron in the orbit is TC [c is speed of light in vacuum] (1) 411 (2) 137 (3) 274 (4) 548

asked Mar 2, 2020 by balaji.thirumalai

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(chatquestion)...1. (a) Describe the region in R3 represented by 1) x² + y° +z* > ?z (i) y<8...(Someone please explain this)

asked Mar 2, 2020 by balaji.thirumalai

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(chatquestion)...) A fasticle hos initial uplonit s and actoudedion 2m/8? Slistance tranellod in 8 ec. imitial yolanity I5m/s is lrit 225-

asked Mar 2, 2020 by balaji.thirumalai

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(chatquestion)...b. 3(a+bx+cx') x² a b (i) If x= 1, prove that, b a. c %3D b. (i)

asked Mar 1, 2020 by balaji.thirumalai

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(chatquestion)...The terms rate of reaction and rate of appearance (or disappearance) of reactant (or product) (A) Represent one and the same physical quantity (B) Differ by a constant factor (C) Are positive parameters and have same value (D) May or may not have same value depending upon the stoichiometric coefficient of reactant (or product) in the balanced chemical equation...(I am confused pls help)

asked Mar 1, 2020 by balaji.thirumalai

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(chatquestion)...The critical volume of a gas is 0.072 lit. mol.The radius of the molecule will be, in cm

asked Mar 1, 2020 by balaji.thirumalai

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(chatquestion)...Vo) LTE ll 22% 9:04 pm LTE E Physics Overview Solutions Two wires A and B of the same length and of the same material have the respective radii ri and ľ2 . Their one end is fixed with a rigid support, and at the other end, the equal twisting couple is applied. Then the ratio of the angle of twist at the end of A and the angle of twist at the end of B will be r4...(Ye twisting couple kya hota hai???..koi batado)

asked Mar 1, 2020 by balaji.thirumalai

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(chatquestion)...A In which condition wire ab can perform simple 14 harmonic motion Fix (1) Fix (2) 9. Fix Mable -Fix r

asked Mar 1, 2020 by balaji.thirumalai

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(chatquestion)...(d) 1.0 x 10- 68. Formation of a solution from two components can be considered as (i) Pure solventseparated solvent molecules, AH (ii) Pure soluteseparated solute molecules, AH, (iii) Separated solvent and solute molecules solution, AH, Solution so formed will be ideal if (a) AHln AH + AH, + AH (b) AHoln AH + AH,-AH (c) AHoln AH-AH,-AH, (d) AHoin AH,- AH-AH, %3D

asked Mar 1, 2020 by balaji.thirumalai

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(chatquestion)...a Find the current flowing through diode D www 2 V 200 2 (1) 20 mA (2) 10 mA (3) Zero (4) 40 mA In which of the following circuit the reading of...(Help me solve this)

asked Mar 1, 2020 by balaji.thirumalai

1 answer

(chatquestion)...38. Two pulleys, smooth and weightless, carry two blockS Mu and M2 as shown in figure. MI M2. The system is at rest at t = 0. The acceleration of mass M is a when the system released. Then the acceleration of M2 will be (A) 8a (B) 4a (C) 2a (D) 0.5a M1 20 cm M2

asked Mar 1, 2020 by balaji.thirumalai

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(chatquestion)...[cos'x{ v(1-x) }] 1+( sin (2xv(1-x²)) log,{1*(sin (2a(...(Photo from HArsh IT)

asked Mar 1, 2020 by balaji.thirumalai

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(chatquestion)...5256°,66L belongs to akikA 10 14 block

asked Mar 1, 2020 by balaji.thirumalai

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(chatquestion)...(6) Mas (c) Ra (d) A 24. The s Tu) 6 km/sec A satellite revolves around the earth in an elliptical orbit. Its 16. speed (a) Iş the same at all points in the orbit [NCERT 1981; MP PET 2001] r ar (b) Is greatest when it is closest to the earth mo (c) Is greatest when it is farthest from the earth (a (d) Goes on increasing or decreasing continuously depending upon the mass of the satellite 25....(Explanation of this answer...)

asked Mar 1, 2020 by balaji.thirumalai

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(chatquestion)...BONES MUSCLES FRONTALIS FRONTAL TEMPORALIS PARIETAL ORBICULARIS OCULI TEMPORAL SPHENOID ZYGOMATICUS MINOR $ MAJOR ZYGOMATIC BONE MASSETER BUCCINA TOR MAXILLA - ORBICULARIS ORIS MANDIBLE DEPRESSOR ANGULI ORIS FACIAL ANATOMY

asked Mar 1, 2020 by balaji.thirumalai

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(chatquestion)...1. Draw the magnetic field lines due to a current carrying loop. Delhi 2013C nt I. (ii) How is a to solenoid? 8. 6) State Bio in the vec 2 Marks Questions (ii) Using Biu expressi to a circ 2. Two identical circular loops P and Q. each of radius r and carrying equal currents are kept in the parallel planes having a a curre distant CBSE 201 P'

asked Mar 1, 2020 by balaji.thirumalai

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(chatquestion)...Two waves get superposed on a string y, = 3 sin2r (x – 10t) and y, = 3 sin2r (x + 10t). Then find the distance between two adjacent nodes on the string. %3D (1) 25 cm (2) 50 cm (3) 75 cm (4) 100 cm

asked Mar 1, 2020 by balaji.thirumalai

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(chatquestion)...28. ) Among the metals, the one that cannot be obtained by reduction of its metal oxide (1) Cr (2) Fe (3) Mn (4) Mg

asked Mar 1, 2020 by balaji.thirumalai

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(chatquestion)...CНO : (1) NaHSO, NaCN A) B) HCI

asked Mar 1, 2020 by balaji.thirumalai

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(chatquestion)...L(* cos+)4 - x² dx x³ cos -2

asked Mar 1, 2020 by balaji.thirumalai

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(chatquestion)...%3D

asked Mar 1, 2020 by balaji.thirumalai

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(chatquestion)...1.6x10-30 (3) 1.6x10-30 (4) (3) 27 27 Which of the following will produce a buffer 55. solution, when mixed in equal volumes ? (1) 0.1 mol dm NH,OH and 0.1 mol dm HCI (2) 0.05 mol dm NH,OH and 0.1 mol dm 3 HCI (3) 0.1 mol dm NH,OH and 0.05 mol dm3 HCI (4) 0.1 mol dm CH,COONA and 0.1 mol dm3 निम्न विल 55. (1) (2) (3) (4) NaOH 56. The pH of the solution formed on mixing 20 mL 56. 0.0: of 0.05 M H,SO, with 5.0 mL of 0.45 M NAOH 5.0 298 K is की...(Guys someone plss tell me..how to proceed)

asked Mar 1, 2020 by balaji.thirumalai

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(chatquestion)...(d) Secona order (c) Zero order 39. When ethyl acetate was hydrolysed in presence of 0.1 M HCI, the rate constant was found to be 5.4 x 10 s. But in presence of 0.1 M H,SO4 the rate constant was found to be 6.25 x 10-5 s1. Thus it may be concluded that : (a) H2SO4 furnishes more H* than HCl (b) H,SO4 furnishes less H than HCl (c) both have the same strength (d) will depend on concentration of ethyl acetate 11reduced to half

asked Mar 1, 2020 by balaji.thirumalai

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(chatquestion)...9. The stopping potential (V) versus v frequency (v) plot of a substance is shown in figure, the threshold wavelength is (a) 5 x 1014m (b) 6000 Å (c) 5000 Å (d) Cannot be estimated from given data 2 4 5 6 7 8 v x 10" Hz

asked Mar 1, 2020 by balaji.thirumalai

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(chatquestion)...52) The velocity of photons is proportional to (where v = frequency) (1) (2) v2. (3) vo 44) Vv 115

asked Mar 1, 2020 by balaji.thirumalai

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(chatquestion)...(2 (4) (4) 31) Sweet potato is homologous to :- I Turnip (3) Colocasia (2) Potato (4) Ginger 35. F 32. Whorled, simple leaves with reticulate venation are present in :...(31 Mae both have same fun na ?)

asked Feb 29, 2020 by balaji.thirumalai

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(chatquestion)...S, and S, are the two coherent point sources of light located in the xy-plane at points (0,0) and (0,3) respectively. Here A is the wavelength of light. At which one of the following points (given as coordinates), the intensity of the interference will be maximum XY तल में बिंदु (0,0) तथा (0, 3A) पर S तथा S, प्रकाश के दो ससंजक स्रोत स्थित हैं। यहां A प्रकाश की तरंगदैर्ध्य है । निम्न में से किस एक बिंदु पर व्यतिकरण की तीव्रता अधिकतम होगी A. (31,0) B. (4λ,0) C. (5A / 4,0)

asked Feb 29, 2020 by balaji.thirumalai

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(chatquestion)...8. A silicon specimen is made into a p-type semiconductor by doping; on an average, one indium atom ner 5 x 107 silicon atoms. If the number density of atoms in the silicon specimen is 5 x 1028 atm/m, then the number of acceptor atoms in silicon per cubic centimeter will be (1) 2.5 x 1030 (2) 2.5 x 1035 (3) 1.0 x 1013 (4) 1.0 x 1015...(Please help!!!)

asked Feb 29, 2020 by balaji.thirumalai

1 answer

(chatquestion)...(3) (4) 49. इनमें से कौनसा यौगिक में नाइट्रोजन का एकांकी युग्म अनुनाद भाग नहीं लेता है:- 49. In which of the compound lone pair of nitrogen is not involved in resonance :- (2) || (1) (1) (2) NH .. (3) (4) (4) NH. -NH, (3) Which of the following will notdecolourise nink colour निन में से कौन डढा न थागीया KMa0 विलयन के गलावी 50

asked Feb 29, 2020 by balaji.thirumalai

1 answer

(chatquestion)...(3) 7.63 50. pH value of which of the following is NOT equal 50. (4) None of these to one ? (1) 0.1 M CH;COOH (2) 0.1 M HNO, (3) 0.05 M H,SO, (4) 50 cm³ 0.4 M HCI + 50 cm 0.2 M NAOH 1. The solubility product of AgCl is 4.0 × 10-10 at 298 K. The solubility of AgCl in 0.04 M CaCl, 51. will be :-...(Ans d hoga na??)

asked Feb 29, 2020 by balaji.thirumalai

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(chatquestion)...538 28 281. In Young's double slit experiment the two slits ared distance apart. Interference pattern is observed on a screen at a distance D from the plane of slit. Fringe is observed on the screen directly opposite to one of the slits. The wavelength of light is: D2 (a) 2d d2 (b) 2D D2 (c) d2 (d) 2. 282. The intensity at the maximum in a Young's double slit experiment is I. Distance between two slits is d = 5%, where A is the wavelength of light used in the experiment. What will %3D loced

asked Feb 29, 2020 by balaji.thirumalai

1 answer

(chatquestion)...the sphere : Inside the field is zero and potential equals to the potential at t E =0 and V = c Graph Page Date the cylinder then nous Conduiliug sphere of Pans frud md total charge of chargedeusi ty.

asked Feb 29, 2020 by balaji.thirumalai

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(chatquestion)...x sin x dx TC 2.

asked Feb 29, 2020 by balaji.thirumalai

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(chatquestion)...27. A square is made by joining four rods each of mass M and length L. Its moment of inertia about an axis PQ, in its plane and passing through one of its corner is (a) 6 ML S ML2 (b) ML2 45 (c) (d) 10 ML2

asked Feb 29, 2020 by balaji.thirumalai

1 answer

(chatquestion)...Stoan) 12 Sloalken) - 125 t 25t Sloall)= ut - Jalo xt- 2. -5t´= 5+² + t(25 -u) t125 =e O ut 125 +25 t %3D Dso (25 -u)"-2500 co (25-4 -50) (25-4t s0) co (-25 - u) (75- u) so

asked Feb 29, 2020 by balaji.thirumalai

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(chatquestion)...9. What is the van't Hoff factor when benzene vapour pressure falls from 165 mm to 162 mm on addition of 6 g of CH3COOH to 3 moles of benzene ? (a) 0.56 (b) 0.325 (c) 2 (d) 0.07

asked Feb 29, 2020 by balaji.thirumalai

1 answer

(chatquestion)...127 Select the group of fungi which belong to the same class. la) Blue mould, pin mould, shelf fungi (b) Cup fungi, coral fungi, dung mould Puff ball, stinkhorns, bracket fungi (d) Black mould, gill fungi, cup fungi...(!?)

asked Feb 29, 2020 by balaji.thirumalai

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(chatquestion)...A balloon is rising up at 25 m,s constant speed from ground at t = 0. At t 5 sec. a stone is thrown vertically upwards from the ground. What is the minimum speed of stone so that it hits the balloon.

asked Feb 29, 2020 by balaji.thirumalai

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(chatquestion)...Question 9 Two particles, 1 and 2 moves with constant velocity V1 and V2. At the initial moment their radius vectors are equal to r and ř2 ř = 31 + 23 ř2 = 4i + 23 v1 = i + } v2 = ki +j For particle to collide k = only for k=1 only for k=2 for k=1 and 2 both for all k E R (any real k)

asked Feb 29, 2020 by balaji.thirumalai

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(chatquestion)...Give me the correct IUPAC name for b) & f) compounds only Feb 29, 2020, 11:13:29 AM Answer Pending 12.4 Give the IUPAC names of the following compounds : (a) (b) (c) CN (d) Cl (e) () CL,CHCH,OH Br Cl Н Che f.llowdne

asked Feb 29, 2020 by balaji.thirumalai

1 answer

(chatquestion)...K. EI= T.E-Uc K.F,= hc 2E6-Eo k. Ez = hc. ビ-Ez= 2E0 Eoニ he 入2 ke 2Eo = hc =D2

asked Feb 29, 2020 by balaji.thirumalai

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